用WaitForMultipleObjects的问题?为什么两次结果不同?

Question

我写了一个线程函数,运行一次,线程正常运行:第一个switch(dwStatus)语句中执行case WAIT_OBJECT_0;      然后不退出主程序,再运行一次这个线程,则在第一个switch(dwStatus)语句中为WAIT_TIMEOUT.这是为什么?怎么控制WaitForMultipleObjects的返回值?我的线程函数如下:
static void _Thread_FuncPtr(LPVOID hCmpp)
{ HANDLE hEvent1=CreateEvent(NULL,false,false,"initscandlgok");//此时由主线程调用f()，见下
::WaitForSingleObject(hEvent1,INFINITE);
::ResetEvent(hEvent1);
Sleep(200);

HANDLE hEvents[2];

hEvents[0]=::CreateEvent(NULL,false,false,"eventReadyToExecute"); // Set when plugin list and prefs received
hEvents[1]=::CreateEvent(NULL,false,false,"eventStatusUpdate");  // Set when connection closed
dwStatus=WaitForMultipleObjects(2,hEvents,FALSE,45000);   // Wait 45 seconds

switch(dwStatus)
{
case WAIT_OBJECT_0:  // Ready
break;
case WAIT_OBJECT_0+1:  // Connection closed or STATUS message received
MessageBox("什么时候才进这里？？？？？？？？？？");
goto exit_scan_thread;
case WAIT_TIMEOUT:
MessageBox("超时退出");
goto exit_scan_thread;
default:
break;
} //****************
……
//在这里是其它与事件无关的代码

hEvents[0]=::CreateEvent(NULL,false,false,"eventStatusUpdate");
hEvents[1]=::CreateEvent(NULL,false,false,"eventRemoveFinished");//set when removefinish is checked
while(1)
{
dwStatus=WaitForMultipleObjects(2,hEvents,FALSE,INFINITE);
if ((!CClientDlg::isConnected)||(CScanDlg::scanfinished))    // Scan finished
break;
switch(dwStatus)
{
case WAIT_OBJECT_0:
            MessageBox("evevntSatatusUpdate");
            break;
case (WAIT_OBJECT_0+1):
            // Remove all already finished hosts if needed
//对事件2的响应吗？
            break;
default:
            break;
}
}
exit_scan_thread : HANDLE h1 = OpenEvent(EVENT_ALL_ACCESS,FALSE,"eventReadyToExecute");
CloseHandle(h1);
HANDLE h2 = OpenEvent(EVENT_ALL_ACCESS,FALSE,"eventStatusUpdate");
CloseHandle(h1);
HANDLE h3 = OpenEvent(EVENT_ALL_ACCESS,FALSE,"eventRemoveFinished");
CloseHandle(h1); ::_endthread();

}void f()//此函数为了使程序能够往执行
{
HANDLE hEvent=CreateEvent(NULL,false,false,"initscandlgok");
::SetEvent(hEvent);
}

Answer 1

没太细看: )
不过_Thread_FuncPtr中
hEvents[0]=::CreateEvent(NULL,false,false,"eventReadyToExecute"); // Set when plugin list and prefs received
hEvents[1]=::CreateEvent(NULL,false,false,"eventStatusUpdate"); // Set when connection closed
dwStatus=WaitForMultipleObjects(2,hEvents,FALSE,45000); // Wait 45 seconds线程结束后，CloseHandle了没有？
如果没有，下次又创建？这会失败的，设断点看看

Answer 2

楼主给你一些提示，聪明人一点就通
 WaitForMultipleObject（DWORD dwCount
                        CONST HNADLE* phObjects
                        BOOL fWaitALL
                        DWORD dwMilliseconds）你把第三个参数设置的是FALSE，则多个event中有一个就到达就可以执行，返回值就是WAIT_OBJECT_0+通知到达的event在数据中的index.....

Answer 3

楼主给你一些提示，聪明人一点就通
 WaitForMultipleObject（DWORD dwCount
                        CONST HNADLE* phObjects
                        BOOL fWaitALL
                        DWORD dwMilliseconds）你把第三个参数设置的是FALSE，则多个event中有一个就到达就可以执行，返回值就是WAIT_OBJECT_0+通知到达的event在数据中的index.....

Answer 4

楼主给你一些提示，聪明人一点就通
 WaitForMultipleObject（DWORD dwCount
                        CONST HNADLE* phObjects
                        BOOL fWaitALL
                        DWORD dwMilliseconds）你把第三个参数设置的是FALSE，则多个event中有一个就到达就可以执行，返回值就是WAIT_OBJECT_0+通知到达的event在数据中的index.....